Features Effortless Sheet Turning: Designed with 30 holes, this binding coil allows for smoother page turning, enhancing your reading and writing experience Adjustable Length: Features a simple manual opening and closing mechanism, letting you easily customize the coil length to fit your paper storage needs High Capacity Design: Accommodates up to 100 sheets, making it ideal for use in offices, classrooms, libraries, and more Features: 1、For Your Paper: Designed to have 30 holes, the A4 spiral binding coil enables smoother page turning for easier reading and writing. 2、Better Binding: Simple manual opening and closing, you can also remove the coil to adjust to the preferred length for paper storage. 3、Large Capacity: Able to clip a large amount of sheets up to 100pcs, the binding spine suits for office, classroom, library and so on. 4、Great Material: Using premium plastic material with transparent colour, not easy to deform, very with and long uses. 5、10Pcs in Total: There are 10pcs spiral binding coil in the set, and the large quantity will simplify the replacement of damaged ones. Specification: Item Type: Spiral Binding Coil Product Material: ABS Product Colour: Transparent Package List: 10 x Spiral Binding Coil Package List 10 x Spiral Binding Coil